Low-voltage Metal-enclosed Switchgear
GCK low-voltage withdrawable switchgear is suitable for industrial and mining enterprises, high-rise civil buildings, AC 50HZ, voltage 380V, three-phase three-wire or three-phase four-wire system, as a low-voltage power distribution system for power transformation, feeder or special purpose...
Description
GCK Low-voltage metal-enclosed switchgear is a fully assembled combined structure, and all the structures of the cabinet frame are connected by screws, which avoids welding deformation and stress, improves the accuracy, and has a high degree of standardization. It has the characteristics of simple operation, small operating force, safe use, convenient maintenance, stable quality and reliability.
Low-voltage withdrawable switchgear:
Main technical parameters: Rated insulation voltage: 660V, 1000V; Rated working voltage: 380V, 660V; Auxiliary circuit rated voltage: AC 220V, 380V, DC 110V, 220V; Operating frequency: 50Hz~(60)Hz; Rated Current: horizontal bus ≤ 3150A; vertical bus 630A, 800A, 1200A rated short-time withstand current: 50, 80KA/1s neutral bus 30KA/1s; rated peak current: 105KA/0.1s, 176KA/0.1s; functional unit ( Drawer) breaking capacity: 50KA (effective value). Shell protection grade: IP30, IP40; bus setting: three-phase four-wire system, three-phase five-wire system. Operation mode: local, remote, automatic.
Structural features:
The basic cabinet frame of GCK and GCL is a combined assembly structure and adopts standard module design: compact structure and flexible assembly. They can be assembled into standard units such as protection, conversion, measurement and control, and indication. They can be assembled as needed to form different solutions. Frame structure and drawer unit. The cabinet structure has high technical performance, and the main parameters have reached the international advanced level in the 1990s.
| Type | Switchgear Project | Specifications | |
| GCK | Switchgear Standard | GB7251,IEC439,VPE0660,JB/T9661 | |
| Switchgear Protection level | IP4X | ||
| Switchgear Rated working voltageV | 380 | ||
| Switchgear frequency HZ | 50 | ||
| Switchgear Rated insulation voltage | 660 | ||
| Switchgear Working environment | Environment | ||
| Altitude | ≤2000m | ||
| Temperature | -10~40 -30 -10 ~ +40 in storage, transport conditions A minimum temperature of -30 | ||
| Relative Humidity | ≤90% | ||
| Control of motor capacityKW | 0.45~155 | ||
| Switchgear Mechanical life | 500 | ||
| Switchgear Rated current | Switchgear Main circuit contact connector | 200,400,630 | |
| Auxiliary circuit contact connector | 10,20 | ||
| The maximum current-fed circuit PC | 1600 | ||
| The maximum current-fed circuit MCC | 630 | ||
| The electric circuit | 100,016,002,000,250,000,000,000 | ||
| Switchgear Rated short-time withstand current | RMS | 50,80 | |
| peak | 105,176 | ||
| PressureV/1min | 2500 | ||
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